[all-commits] [llvm/llvm-project] 8e2cd2: [OpenMP] Fix preprocessor mismatches between inclu...

[Peter Arzt via All-commits]

  Branch: refs/heads/release/21.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 8e2cd28cd4ba46613a46467b0c91b1cabead26cd
      https://github.com/llvm/llvm-project/commit/8e2cd28cd4ba46613a46467b0c91b1cabead26cd
  Author: Peter Arzt <peter at arzt-fd.de>
  Date:   2025-11-03 (Mon, 03 Nov 2025)

  Changed paths:
    M openmp/runtime/src/kmp.h
    M openmp/runtime/src/kmp_affinity.cpp
    M openmp/runtime/src/kmp_affinity.h
    M openmp/runtime/src/kmp_alloc.cpp
    M openmp/runtime/src/kmp_dispatch.h
    M openmp/runtime/src/kmp_global.cpp
    M openmp/runtime/src/kmp_settings.cpp

  Log Message:
  -----------
  [OpenMP] Fix preprocessor mismatches between include and usages of hwloc (#158349)

Fix https://github.com/llvm/llvm-project/issues/156679

There is a mismatch between the preprocessor guards around the include
of `hwloc.h` and those protecting its usages, leading to build failures
on Darwin: https://github.com/spack/spack-packages/pull/1212

This change introduces `KMP_HWLOC_ENABLED` that reflects
whether hwloc is actually used.

(cherry picked from commit cd24d108a2c19c23c4ac80b501fa7361963cca3d)



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